Gold Standard 100% Casein Powder Chocolate 924g
by Optimum Nutrition
Optimum Nutrition's Gold Standard 100% Casein Powder delivers 24g of micellar casein per serving with minimal fat and sugar, designed for slow protein digestion. Best for Muscle-building athletes seeking overnight protein support and People prioritizing satiety and sustained fullness between meals.
According to the AIScored 0–100 scoring system, Gold Standard 100% Casein Powder Chocolate 924g by Optimum Nutrition scores 80.0/100, ranking #1 out of 13 products in Protein Powders (2026). Strongest category: Effectiveness (80.0/100). Weakest: Certifications (40.0/100).
Is Gold Standard 100% Casein Powder... worth buying?
“Gold Standard 100% Casein from Optimum Nutrition packs 24g of slow-digesting micellar casein per serving with just 1.5g sugar, making it one of the cleanest casein options available. The rich chocolate flavour gets consistent praise for its smooth texture, and users report genuine lasting satiety that carries them through to lunchtime.”
What Do Reviewers Say About Gold Standard 100% Casein Powder Chocolate 924g?
Sample excerpts from currently available source material used in this product analysis.
"Superior Casein. Bar far the best tasting and textured Casein powder I've tried so far. ⭐⭐⭐⭐⭐"
"Casein powder. I use this every day for my overnight oats. Keeps me feeling full until lunchtime and tastes great"
"Casein. Years ago when I was living in Turkey, I always liked this brand. Even though Optimum was way more expensive than other supplements, I still tried to buy it because it was my favorite. But unfortunately, not all of their products we..."
"Great taste, nice thick shake.. Great taste. A bit clumpy and hit and miss when mixing with full fat milk. It seems to mix well with water or semi skimmed milk. Again, decent product."
How does Gold Standard 100% Casein Powder Choc... score?
Detailed score breakdown and key findings from our analysis of 4 reviews across 1 source.
Pros
- +Excellent taste and smooth texture (mentioned by multiple reviewers)
- +High protein content (24g per 33g serving) with low sugar (1.5g) and minimal fat (0.7g)
- +Sustained satiety and fullness (reviewers report lasting until lunchtime)
- +Strong brand reputation with loyal customer base citing consistent quality
- +Suitable for evening/overnight use due to slow casein digestion profile
Cons
- -Mixing can be clumpy with full-fat milk; better with water or semi-skimmed milk
- -Premium pricing compared to competitor casein products
- -Not third-party tested (no NSF, Informed Choice, or similar certification)
- -Contains artificial sweeteners (Acesulfame K, Sucralose) and thickening gums which may affect digestion in sensitive individuals
Best For
Watch Out
- !Mixing challenges with high-fat milk — use water or lower-fat milk for best results
- !Contains soy lecithin (allergen concern for soy-sensitive individuals)
- !Lack of third-party testing; batch consistency not independently verified
- !Contains dairy (milk) and soy — not suitable for vegan or dairy-free diets
- !Artificial sweeteners may cause digestive upset in sensitive individuals
What is Gold Standard 100% Casein Powder Chocolate 924g?
Gold Standard 100% Casein Powder Chocolate 924g is a protein powders product by Optimum Nutrition in powder form, scoring 80.0/100 on AIScored.
- • 24g of pure micellar casein protein with only 0.5g fat & no sugar Slow digesting protein powder Supports muscle growth & maintenance Sometimes slower is better - especially when it comes to the rate of protein digestion.
- • While rapid protein absorption is desirable immediately before or after exercise, delayed release is probably more beneficial throughout the remainder of the day & especially last thing at night.
- • Optimum Nutrition Gold Standard 100% Casein Powder is the industry's first all-micellar Casein, and delivers 24g of slower digesting casein proteins for muscle growth support.
- • Casein is best enjoyed in the evening - simply add one scoop to water, milk or your favourite drink.
What's Inside Gold Standard 100% Casein Powder Chocolate 924g?
Gold Standard 100% Casein Powder Chocolate 924g contains 23 active ingredients: Fat, Of which saturates, Of which sugars, Protein and more.
Active Ingredients
- Fat
- 0.7g
- Of which saturates
- 0.3g
- Of which sugars
- 1.5g
- Protein
- 24g
- Fibre
- 1g
- Per
- 33g Serving
- Carbohydrate
- 3.5g
- Of which Trans Fat
- 0g
- Sodium
- 242mg Macro Nutrient table: Energy Kcal per 100g 348Kcal
- Energy kJ per
- 100g 1467kJ
- Fats per
- 100g 2.1g
- Of which Saturates per
- 100g 1g
- Carbohydrates per
- 100g 10.6g
- Sugar per
- 100g 4.5g
- Protein per
- 100g 72.7g
- Salt per
- 100g 0.73g
- Fats per serving
- 0.7g
- Of which Saturates per serving
- 0.3g
- Carbohydrates per serving
- 3.5g
- Sugar per serving
- 1.5g
- Protein per serving
- 24g
- Salt per serving
- 0.2g
- Serving size
- 33g
Other Ingredients
Micellar Casein (milk) [contains Emulsifier: Soy Lecithin], Fat-Reduced Cocoa Powder, Flavour, Salt,Thickeners (Cellulose Gum, Carageenan Gum, Guar Gum), Sweetener (Acesulfame Potassium, Sucralose), Enzyme Complex (Amylase, Protease, Cellulase,Beta-D-Galactosidase, Lipase). For Allergens - See ingredients in bold.
Is Gold Standard 100% Casein Powder Chocolate 924g Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
How Does Gold Standard 100% Casein Powder Chocolate 924g Compare?
See how this product stacks up against the top-rated protein powders in our database.
| Product | Score | Price |
|---|---|---|
| Gold Standard 100% Casein Powder... (this) | 80.0 | £50.00 |
| Diet Protein Chocolate Dessert 4... | 70.0 | £15.00 |
| Diet Protein Salted Caramel 450g... | 70.0 | £15.00 |
Price History (90 days)
Quick Facts
- Form
- powder
- Serving
- 1 serving
- Vegan
- No
Frequently Asked Questions
Is Gold Standard 100% Casein Powder Chocolate 924g worth buying in 2026? ▼
What is the best price for Gold Standard 100% Casein Powder Chocolate 924g in the UK? ▼
What are the pros and cons of Gold Standard 100% Casein Powder Chocolate 924g? ▼
Is Gold Standard 100% Casein Powder Chocolate 924g third-party tested? ▼
How does Gold Standard 100% Casein Powder Chocolate 924g compare to Diet Protein Chocolate Dessert 450g (18 Servings)? ▼
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
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